"We're opening the door?  Then why are none of us at the door??" Ketch replies to Lionel and will then Misty Step 30' towards the door and the move (and dash if needed) to get to the door so as to open it...  ((I'm assuming Banishment on Laffa was unsuccessful since it's not mentioned...))

Had to update the below, as the Skeleton's AC is 16 not 15 as I thought...

The other four advance behind the ring of skeletons in front of them and begin chopping up the undead skeletons....
Attack on Skeleton: 26 Damage: 9 (hits skeleton has 14/23 hp left)
Attack on Skeleton: 11 Damage: 15 (misses)
Attack on Skeleton: 23 Damage: 15 (takes out skeleton that had 14 hp left.)

Next set of Skeletons...
Attack on Skeleton: 10 Damage: 14 (misses)
Attack on Skeleton: 15 Damage: 15 (misses Skeleton AC is 16.)
Attack on Skeleton: 15 Damage: 18 (misses Skeleton AC is 16.)

Next set of Skeletons...
Attack on Skeleton: 20 Damage: 7 (hits, leaving skeleton at 16/23 hp)
Attack on Skeleton: 26 Damage: 13 (take sout skeleton just hit)
Attack on Skeleton: 23 Damage: 14 (leaves skeleton at 9/23 hp)

Last set of Skeletons...
Attack on Skeleton: 10 Damage: 12 (misses)
Attack on Skeleton: 8 Damage: 13 (misses)
Attack on Skeleton: 14 Damage: 12 (misses)

So you took out 2 skeletons above and injured a 3rd. Five more were taken out previously, so that leaves me with 12 skeletons, one of which is injured.

((We've got some funds... next time in a city we need to buy them there undead some plate mail!  Better AC, less needing to hide, and able to use them as musical instruments since they all hollow inside!))

(Ok, adjusted to 12 skeletons, 1 injured. 1 zombie. And somehow I entirely missed your banishment Ketch in the offline/online mix of messages.  Laffa save vs Banishment:  10 vs DC 18.  (wow, lucky little jerk of a wizard))

Laffa resists your spell, and immediately casts himself a hidey hole (Rope trick) with his rope and crawls into the space, pulling up the rope and hiding away!

Back to the battle!

Ketch takes a magical step and appears halfway across the room, then runs the rest of the way to the door, and throws aside the table you'd slid into place, and pulls the door open. Several elf warriors, an elf wizard, and a giant  are all sitting about in a room looking very bored and all glance in your direction in surprise...and then in horror as they see the princess free and the room in conflict....

New competitors have entered the arena!  

Elves : 20

Fomorian : 16

The elves yell and the Fomorian obediently stands up, lunging forward....and pulls the door shut with a heavy hand and a thud!

Mordekai unleashes blasts that slam into the princess, the magic slamming into her sending bits of glass flying.

Laffa sticks his head out of his rope trick long enough to see battle and ducks away to hide some more.

Meepo's action!

Meepo casts a spell...
Danse Macabre, targetting five of the skeletons. he then orders all undead to attack the warriors that just attacked his skeletons.

S1 ... Attack: 11 Damage: 9
S2 ... Attack: 16 Damage: 9
S3 ... Attack: 20 Damage: 6
S4 ... Attack: 15 Damage: 8
S5 ... Attack: 24 Damage: 6

S8 ... Attack: 7 Damage: 10
S9 ... Attack: 18 Damage: 7
S10 ... Attack: 8 Damage: 11
S11 ... Attack: 16 Damage: 9
S12 ... Attack: 11 Damage: 8
S13 ... Attack: 11 Damage: 11
S14 ... Attack: 9 Damage: 7
S15 ... Attack: 12 Damage: 8
S16 ... Attack: 23 Damage: 7
S17 ... Attack: 15 Damage: 6
S18 ... Attack: 8 Damage: 6
S19 ... Attack: 6 Damage: 10

Five down skeletons immediately get back up and the undead army engages in battle with all of the glass elf warriors. 

The glass warriors seem to take some amount of damage but largely go unscathed as the skeletons try to destroy them. 

Meanwhile, from her spot near the ceiling of the room, Nintra throws down two shards of glass, both at Mordekai. 

Attack on Mordekai: 31 Damage: 10 necrotic damage.  Roll DC 20 Con save or be poisoned until the end of your next turn. 

Attack on Mordekai: 19 Damage: 12 necrotic damage.  Roll DC 20 Con save or be poisoned until the end of your next turn. 

2 recharge on 6. 

Nintra seems to concentrate and then three more versions of her appear near the ceiling. 

Then the glass warriors attempt to take down more skeletons. 

Glass Warrior attacks (3 each) on skeletons :  

Attack: 21 Damage: 16

Attack: 14 Damage: 16

Attack: 21 Damage: 15

Attack: 18 Damage: 15

Attack: 9 Damage: 13

Attack: 9 Damage: 11

Attack: 19 Damage: 10

Attack: 18 Damage: 14

Attack: 17 Damage: 12

Attack: 24 Damage: 16

Attack: 20 Damage: 12

Attack: 25 Damage: 14

Attack: 12 Damage: 12

Attack: 26 Damage: 19

Attack: 26 Damage: 15

Attack: 25 Damage: 18

Attack: 8 Damage: 17

Attack: 20 Damage: 8

(Meepo, please confirm, but I believe they cut down 6, and the injured one for a total of 7 downed skeletons.)

Lionel, Ketch, your actions. 

Initiative:  Nintra 26 |  Glass Warriors 18 | Lionel 14  | Ketch 13 | Formian 12 | Mordekai 10 | Laffa 9 | Elves 9 | Meepo 6

DC20 CON save against poison #1: 20

DC10 CON save for concentration on Hex #1: 12

DC20 CON save against poison #2: 16

DC10 CON save for concentration on Hex #2: 12

It was a hard choice with the enemy in the air but after a moment of contemplation, Lionel squinted at the Princess under the ceiling and sent his trusty Javelin of Lightning at the fiend:

Attack: Bless 2 + 29 Damage: 9 + 9

     "The princess is free!" Ketch will bellow out at the top of his lungs.  "To arms, help us defeat her!!"

     Ketch then turns to face Nintra and casts Hold Person on her. ((DC 18 Wis Save))  

(Is drinking a potion an action or bonus action?)

     Finally Ketch will gird his loins and move into as close to melee with the princess as he can...

Attack: 17 Damage: 12 (misses as now the skeletons are using short sowrds and using a shield, so ac is 18.)
Attack: 12 Damage: 9 (misses)
Attack: 11 Damage: 10 (misses)
Attack: 17 Damage: 13 (misses)
Attack: 15 Damage: 18 (misses)
Attack: 25 Damage: 13 (Takes out injured skeleton)
Attack: 25 Damage: 19 (Injures a skeleton 4/23 hp left)
Attack: 24 Damage: 14 (takes out injured skeleton)
Attack: 27 Damage: 31 (takes out full hp skeleton)
Attack: 27 Damage: 17 (Injures a skeleton (6/23 hp left)
Attack: 27 Damage: 25 (takes out injured skeleton)
Attack: 11 Damage: 161 (misses)
Attack: 11 Damage: 161 (misses)
Attack: 11 Damage: 111 (misses)
Attack: 24 Damage: 9 (Injures a skeleton 14/23 hp left)
Attack: 15 Damage: 101 (misses)
Attack: 22 Damage: 13 (Injures injured skeleton further 1/23 hp left)
Attack: 12 Damage: 111 (misses)


You take out 4 skeletons and leave a fifth at 1 hp.

(Alright, you didn't mention the change from archery to short swords and sheilds, but okay dokay!) 

DC 18 Wisdom Save for Nintra : 15. (oops, spell fails, Nintra is not a humanoid!) 

Javelin attack mirror image check on 6 or higher: 13

The javelin flies up and rips through one of the copies of Nintra which vanishes, and slams into the ceiling, then clatters down to the floor loudly.

From outside there is a lot of yelling in Fey, and the Formorian seems to be being ordered to try and hold the door shut.  Some spells are cast and the doorway seems to seal over with stone. The sound from outside becomes nothing more than a muffled background noise amidst the battle inside the room. 

Ketch positions himself under the princess and looks up at her.  She glances down with a sneer. 

Mordekai and Meepo's action!  

(shocking!)

Mordekai casts Blink on himself, and as a bonus action will give Lionel a d8 Bardic Inspiration.

Blonk roll for end of this turn: 10

Meepo sends a 5th-level magic missile at the princess.
Force damage: 21

He then has his skeletons continue to attack the warriors...
1... Attack: 17 Damage: 9
2 ... Attack: 26 Damage: 9
3 ... Attack: 18 Damage: 11
4 ... Attack: 23 Damage: 7
5 ... Attack: 27 Damage: 11

12 ... Attack: 14 Damage: 11
13 ... Attack: 15 Damage: 11
14 ... Attack: 6 Damage: 6
15 ... Attack: 23 Damage: 6
16 ... Attack: 6 Damage: 6
17 ... Attack: 6 Damage: 8
18 ... Attack: 10 Damage: 10
19 ... Attack: 10 Damage: 11

Blades and shields clank and slam as the skeletons are in full combat with the glass warriors. The glass warriors seem to be dropping skeletons but the damage the skeletons are doing doesn't seem to be enough to cripple any of the glass elves yet. 

Nintra meanwhile takes the brunt of missiles coming from Meepo.  She growls down at him but sends three more shards of black glass at Mordekai who casts a spell but does not vanish. 

Attack on Mordekai: 26 Damage: 8 If hit, DC 20 Constitution saving throw or be poisoned until the end of his next turn.

Attack on Mordekai: 21 Damage: [roll](if([roll:-1:critical], =0, 1d6, 2{1d6}.expand()))+7[/roll ]If hit, DC 20 Constitution saving throw or be poisoned until the end of his next turn.

Attack on Mordekai: 13 Damage: 11 If hit, DC 20 Constitution saving throw or be poisoned until the end of his next turn.

Recharge on 6 : 1

Then Nintra looks down at Meepo, casting spells up at her unerringly despite her multiple images, and seems to take notice of him. "Ahhhh, there you are little one. Come, I could use some of your power." She makes a wafting motion with her hands and suddenly the tattoos along Meepo's body shimmer and seem to try and crawl further up his body!   Meepo : Charisma Save DC 20. 

Mucked up damage : 13 damage

Suppose I best see if Protection from Evil and Good is still up then... Concentration check: 20 DC is 17.

...

Meepo cha save: 12 If this is a charm or frighten effect though, Meepo is currently immune to it, thanks to pre-casting of Protection from Evil and Good. Not sure how we want to work that, as he likely would have paused to do his casting just before doing the writing of his intent to free the princess, so likely a round or two was taken up with the writing, so I would assume that would take off of the duration of the spell.

DC20 CON save against poison #1: 9

DC10 CON save for concentration on Hex #1: 22

DC20 CON save against poison #2: 16

DC10 CON save for concentration on Hex #2: 10

The tattoo's seem to crawl up along Meepo, the protection spell on him doing nothing to stop them. He feels his body shift and change....the breath he's drawing in seems no longer necessary. He thinks he may no longer need to breath!  But, with this, something worse happens. He immediately loses attunement to all of his magical items, including the staff in his hands. 

The warriors continue hacking at Skeletons (I'll let Meepo tell me how many I kill as opposed to getting it wrong again. :-D. ) 

Attack: 16 Damage: Unable to parse dice roll.

Attack: 10 Damage: 13

Attack: 9 Damage: 17

Attack: 18 Damage: 12

Attack: 19 Damage: 10

Attack: 12 Damage: 19

Attack: 20 Damage: 9

Attack: 16 Damage: 15

Attack: 14 Damage: 8

Attack: 20 Damage: 19

Attack: 15 Damage: 14

Attack: 26 Damage: 14

Attack: 21 Damage: 12

Attack: 15 Damage: 11

Attack: 18 Damage: 16

Attack: 25 Damage: 17

Attack: 10 Damage: 12

Attack: 19 Damage: 13

Lionel and Ketch are up!

Initiative:  Nintra 26 |  Glass Warriors 18 | Lionel 14  | Ketch 13 | Formian 12 | Mordekai 10 | Laffa 9 | Elves 9 | Meepo 6